Don't miss: Sarah Brightman's Orlando concert

WHAT: It would be ill-advised to get into a game of "top this" with Sarah Brightman, a singer so accustomed to the world stage that she has performed the theme songs for not one, but two Olympics: in 1992 in Barcelona, Spain, and in 2008 in Beijing. Expect yet another lavish production on the singer's Dreamchaser Tour, showcased in preview videos as a melding of glittering gowns and tiaras, towering stage platforms, "Star Trek"-worthy outer-space scenes and the occasional medieval castle.